We will exceptionally not be available by phone this afternoon, Thursday May 16. The whole team will be happy to answer your questions tomorrow, Friday, at our usual times!
Most hot tubs are manufactured with pipework in imperial sizes, with names in inches. The name of the pipe does not correspond to the actual size in inches! We know... it's confusing. Here are the exterior diameters of the different pipe sizes commonly found in spas and hot tubs: